California multifamily developer guides
Subdivision, Condo Maps & Development Agreements
How California land division actually works: Subdivision Map Act approvals and conditions, condominium and airspace subdivisions (including conversions), vesting tentative maps vs development agreements, and the lot-line adjustment and certificate-of-compliance shortcuts.
The Subdivision Map Act: maps, conditions and timelines
The map is the entitlement: five lots or five condo units trigger it, its conditions carry the exactions, and its expiration date can kill the deal.
Read the guide →Condo maps and airspace subdivisions: building sellable units
Record the condo map while you build and you buy a for-sale exit for pennies — try to recreate it later and you may not get it at all.
Read the guide →Vesting tentative maps vs development agreements: freezing the rules
Completeness of a vesting map fixes the rulebook that day; a development agreement can hold it still for twenty years — pick the freeze that matches the project's clock.
Read the guide →Lot-line adjustments and certificates of compliance: the map-free shortcuts
Four parcels or fewer, boundaries only, no new lots: the lot-line adjustment skips the map process entirely — and a certificate of compliance makes an illegal parcel bankable.
Read the guide →More developer guides
- Density Bonus & Zoning Incentives
- Entitlements & Streamlined Approvals
- Rent Control & Tenant Protections
- Demolition, Replacement Housing & Relocation
- Impact Fees, Exactions & Special Taxes
- CEQA & Environmental Review
- Affordable Housing Finance: LIHTC, Bonds & Rental Subsidies
- Building Codes & Construction Standards
- Site Selection & Development Due Diligence
Every rule cited in these guides links to the verbatim statute or regulation in the California Code Library and the federal housing-law library.
Apply these rules to a real parcel
Ask the AI how land division & mapping play out in a specific city or county — grounded in the code text.